You... jump on photos. That's it. Building momentum for jumps- a key mechanic of the game- feels awkward and unresponsive. As a sequel to Vib-Ribbon this is just bad; play Mojib-Ribbon instead, it's better despite the language barrier.

I'd probably give this an extra 1/2 star if I could import photos, but Sony pulled a Sony here and made that exclusive to a few of their cameras. cool.